This research aims to develop a valid and reliable test to determine the coding skill levels of 5-7 years old children in early childhood. The study sample consists of children aged 5-7 who attend primary and pre-school education institutions affiliated to the Ministry of National Education in Ağrı and Gaziantep city center in the 2020-2021 academic year. Data were obtained from 308 children, 101 of whom were five years old, 100 were six years old, and 107 were seven. As a data collection tool in research, the "Personal Information Form" containing personal information about children and their parents and the "Early Childhood Coding Skills Assessment Test" developed by the researcher to evaluate the coding skill levels of 5-7-yearold children were used. In the validity analysis to determine the test's validity and reliability, content-structure validity, criterion-based validity analysis, similar scale compatibility validity, tetrachoric factor analysis, and item difficulty analysis; In the reliability analysis, KR-20 reliability analysis was used. As a result of the findings obtained from the research, the "Early Childhood Coding Skills Assessment Test" is a valid and reliable measurement tool that can be used to determine the skill levels of 5-7-year-old children unplugged coding and robotic coding.

The purpose of this research is to examine the coding skills of five-year-old children in terms of some variables. The research sample comprises 160 children aged five years studying in kindergarten affiliated with the Ministry of National Education in Gaziantep city center in the 2021-2022 academic year. As a data collection tool in the research, the “personal information form,” which includes personal information about children and their parents, and “CodingTest 2”, the short form of “CodingTest” and “CodingTest,” developed by Kalyenci et al. (2022), were used to evaluate the coding skill levels of five-year-old children. Pearson correlation analysis, t-test, and ANOVA were used to analyze data. As a result of the findings obtained from the research, it was concluded that coding skills were not related to gender but were related to whether the children had coding education, the education level of parents, and their families’ income level.